A sample of 100 bank customer waiting times are given in the following table: Wa

Question

A sample of 100 bank customer waiting times are given in the following table: Waiting Times (in Minutes) for the Bank Customer Waiting Time Case 6.7 2.0 6.9 11.6 4.6 9.1 10.4 4.7 8.7 8.4 6.4 6.8 7.0 9.4 6.6 4.6 9.4 8.7 2.9 4.0 6.5 5.6 4.3 8.9 2.3 5.8 5.9 6.6 7.8 7.6 4.3 4.0 4.6 4.9 4.4 6.3 7.5 2.9 8.6 4.2 4.8 6.3 6.8 9.5 7.8 6.9 6.4 7.8 9.5 2.2 4.0 5.2 5.0 8.2 7.8 6.9 4.6 4.0 4.8 10.5 8.5 7.7 4.6 6.4 4.9 6.2 5.7 2.5 2.5 4.9 7.7 10.3 6.5 5.3 3.2 7.3 5.0 10.3 6.2 5.5 7.6 5.0 9.7 11.0 8.0 3.2 5.4 4.8 A sample of 100 bank customer waiting times are given in the following table: 7.9 8.3 7.6 2.9 1.7 2.0 2.6 2.0 2.9

Explanation / Answer

For part d)

Please check how many values fall between 3.404 and 8.496

I entered all the 100 values in excel , sorted them , and counted the values that fall between 3.404 and 8.496

I got 65 values that fall in this range

.

Thus 65 /100 * 100 = 65%

This must be the answer

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